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#! /usr/bin/env stap
# Copyright (C) 2006 IBM Corp.
#
# This file is part of systemtap, and is free software. You can
# redistribute it and/or modify it under the terms of the GNU General
# Public License (GPL); either version 2, or (at your option) any
# later version.
#
# Print signal counts by process name in descending order.
#
global sigcnt, sig2name
probe begin {
print("Collecting data... Type Ctrl-C to exit and display results\n")
}
probe signal.send
{
sigcnt[execname(), pid_name, sig] <<< 1
if (!(sig in sig2name)) sig2name[sig] = sig_name
}
probe end
{
printf("%-16s %-16s %-16s %s\n",
"SENDER", "RECEIVER", "SIGNAL", "COUNT")
foreach ([snd_name, rcv_name, sig_num] in sigcnt-)
printf("%-16s %-16s %-16s %d\n",
snd_name, rcv_name, sig2name[sig_num],
@count(sigcnt[snd_name, rcv_name, sig_num]))
}
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